Special electromagnetic positioning structure for lamp tube processing machine tool

Abstract

The utility model relates to an electromagnetic positioning structure special for a lamp tube processing machine tool. The electromagnetic positioning structure mainly comprises a left fixed base head, a right movable base head and a movable heating forming assembly. The right movable base head is provided with a sliding seat and a hand wheel, and the hand wheel is positioned through an electromagnetic brake. The electromagnetic brake comprises a magnet yoke assembly, a coil, a belleville spring, a transmission shaft, an armature assembly, a brake disc and the like. The magnet yoke assembly is installed on the machine base and generates a magnetic field. The transmission shaft is provided with three fixing grooves for providing radial support. According to the structure, the lamp tube can be adjusted according to the machining position, accurate positioning is achieved through the electromagnetic brake, and the problems that in the quartz lamp tube machining process, due to the fact that a handle wheel of the right base is lack of a positioning structure, deviation is caused, follow-up quartz lamp tube forming is affected, and an existing positioning structure is poor in flexibility and convenience are solved.

Description

Technical Field

[0001] The present application relates to the technical field of quartz lamp tube processing machine tools, and in particular to the technical field of electromagnetic positioning of lamp tube processing machine tools. Background Art

[0002] Traditional lamp tube processing machines typically rely on mechanical locking mechanisms, such as gears and lead screws, for positioning. While these methods can achieve positioning, they have certain drawbacks. For example, mechanical locking mechanisms offer low positioning accuracy, cumbersome adjustment, and require high operator skill. Furthermore, wear and fatigue of the mechanical mechanisms can affect machine stability and processing efficiency.

[0003] During the processing of quartz lamp tubes, since the handle wheel of the right base lacks an effective fixing structure, during the heating and molding process, the main shaft becomes loose or offset when running at high speed or bearing a large load, which can easily cause the position of the right base to shift, thereby affecting the molding accuracy of the lamp tube.

[0004] CN201922131355.5 discloses a spindle locking mechanism for a quartz rod secondary molding machine. The mechanism includes a headstock body, on which a spindle sprocket is provided, and a locking seat body is installed below the spindle sprocket. An umbrella-shaped tooth block that matches the spindle sprocket is cleverly provided on the top of the locking seat body. The bottom of the umbrella-shaped tooth block is interspersed with an umbrella-shaped card telescopic tension and compression rod. The other end of the tension and compression rod passes through the locking seat body and extends to the outside for easy operation. At the same time, a compression spring positioning bottom block is also provided between the locking seat body and the headstock body. The umbrella-shaped tooth block and the compression spring positioning bottom block are tightly connected by compression spring 2 to ensure stable transmission of the locking force.

[0005] With respect to the above-mentioned related technologies, the inventors believe that although the problem of poor stability of spindle locking has been solved, the operation complexity of the overall structure is high and the flexibility of the locking mechanism is poor. Utility Model Content

[0006] The utility model relates to an electromagnetic positioning structure for lamp tube processing machine tools, which aims to solve the problem that the handle wheel of the right base lacks a positioning structure during the processing of quartz lamp tubes, causing deviation, affecting the subsequent molding of the quartz lamp tubes, and the poor flexibility and convenience of the existing positioning structure. The following is the technical solution of the utility model:

[0007] A special electromagnetic positioning structure for lamp tube processing machine tools includes a bottom operating table with a slide rail on it, a left fixed base head arranged on the left side of the bottom operating table, a right movable base head arranged on the right side of the bottom operating table, a movable heating and forming assembly located between the left fixed base head and the right movable base head, a slide at the bottom end of the right movable base head, which is adapted to the slide rail, and a right base hand wheel installed perpendicular to the horizontal plane of the slide rail. It is characterized in that: an electromagnetic brake is additionally provided on the right base hand wheel, and the electromagnetic brake includes a yoke assembly, a coil, a butterfly spring, a transmission shaft, an armature assembly and a brake disc, and the braking and releasing of the electromagnetic brake are achieved by controlling the current of the yoke assembly.

[0008] As a further solution of the present invention, the yoke assembly includes a coil and a butterfly spring, the coils are separated by insulating material, and are installed near the armature assembly, thereby enhancing the stability and safety of the electromagnetic brake.

[0009] As a further solution of the present invention, a circle of heat sinks is added around the periphery of the yoke assembly, which reduces the heat generated by the electromagnetic brake during operation, prolongs the service life of the equipment, and improves the reliability of the overall operation.

[0010] As a further solution of this invention, the drive shaft is made of metal and has three fixing grooves on its surface, located at both ends and in the middle of the drive shaft, to provide radial support. This enhances the strength and stability of the drive shaft, reduces the risk of deflection and damage caused by vibration or impact, and improves radial support.

[0011] As a further solution of the present invention, a first fixing groove is provided at one end, which has a length of 10 mm and a width of 6 mm; a second fixing groove is provided in the middle, which has a length of 60 mm and a width of 8 mm; a third fixing groove is provided at the other end, which has a length of 10 mm and a width of 6 mm; the first fixing groove corresponds to the third fixing groove, and is used to provide good radial support for the connected braking components, thereby improving the overall stability of the drive shaft.

[0012] As a further solution of this invention, the brake disc is mounted on the drive shaft on the side opposite the yoke assembly and the armature assembly. Anti-slip teeth are provided on the edge of the brake disc. This improves the connection stability between the brake disc and the drive shaft, while also increasing friction during braking, ensuring a quick and reliable braking effect.

[0013] As a further solution of the utility model, a DC24V power switch is installed on the front face of the right movable base head to control the power connection and disconnection of the electromagnetic brake. This makes the control of the electromagnetic brake more intuitive and convenient, improving the operability of the device and user experience.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. This structure uses an electromagnetic brake, which can achieve fast and accurate positioning, greatly improving processing efficiency. In the existing technology, due to the lack of effective positioning means, it often takes a lot of time to adjust during the processing, which not only affects production efficiency but also increases labor costs. This application achieves precise control of the drive shaft by adding an electromagnetic brake, thereby ensuring the accurate position of the lamp during processing, greatly improving production efficiency, and the flexibility and convenience of positioning are high.

[0016] 2. The drive shaft in this structure is equipped with multiple fixing grooves, which improves the overall stability of the drive shaft. This significantly enhances the radial support of the drive shaft, making it more stable at high speeds and effectively reducing machining errors caused by drive shaft vibration.

[0017] 3. The brake disc is equipped with anti-skid teeth, which effectively prevents relative sliding with the drive shaft during high-speed rotation.

[0018] 4. This application effectively solves the heat dissipation problem by adding a heat sink, ensuring the long-term stable operation of the electromagnetic brake.

[0019] To sum up, the electromagnetic positioning structure dedicated to the lamp tube processing machine tool in the embodiment of the present application has shown significant beneficial effects in improving processing efficiency, enhancing braking stability, improving transmission shaft stability, ensuring braking reliability, and improving heat dissipation performance, and has positive significance for promoting the development of lamp tube processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the lamp tube processing machine.

[0021] Figure 2 It is a schematic diagram of the overall structure of the electromagnetic brake.

[0022] Figure 3 It is a top view of the transmission shaft of the utility model.

[0023] Figure 4 It is a front view of the transmission shaft of the utility model.

[0024] Explanation of the accompanying drawings: 1. Operating table; 11. Slide rail; 2. Left fixed base head; 3. Right movable base head; 32. Slide; 33. Right base hand wheel; 4. Mobile heating and forming assembly; 6. Electromagnetic brake; 61. Yoke assembly; 611. Coil; 612. Butterfly spring; 62. Drive shaft; 622. First fixed slot; 623. Second fixed slot; 624. Third fixed slot; 63. Armature assembly; 64. Brake disc; 8. DC24V power switch. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 This application is described in further detail.

[0026] The embodiment of the present application discloses an electromagnetic positioning structure for a lamp tube processing machine tool. Figure 1 , refer to Figure 1 A slide rail 11 is provided on the bottom operating table 1 of the lamp tube processing glass molding machine. A left fixed base head 2 is provided on the left side of the bottom operating table 1, and a right movable base head 3 is provided on the right side of the bottom operating table 1. A mobile heating molding component 4 for secondary processing of the quartz lamp tube is provided between the left fixed base head 2 and the right movable base head 3.

[0027] A slide 32 adapted to the slide rail 11 is horizontally arranged at the bottom end of the right movable base head 3, and a right base hand wheel 33 is installed perpendicular to the horizontal plane of the slide rail 11. By controlling the right base hand wheel 33, the slide 32 can be controlled to move left and right, so that the quartz lamp tube clamped on the right side can be adjusted according to the processing position during the processing.

[0028] Further, if Figure 2 As shown, the right base hand wheel 33 is additionally provided with an electromagnetic brake 6, which includes a yoke assembly 61, a transmission shaft 62, an armature assembly 63, a brake disc 64 and other components.

[0029] Furthermore, the yoke assembly 61 is installed inside the electromagnetic brake and secured to the base with mounting screws. The gap is adjusted to generate a magnetic field. A heat sink is added around the periphery of the yoke assembly 61 to improve its heat dissipation. The yoke assembly 61 includes components such as a coil 611 and a butterfly spring 612. The coils are separated by insulating material and installed near the armature assembly. The butterfly spring 612 adjusts the gap between the yoke and the armature and resets the armature assembly 63 when power is removed.

[0030] When the coil is energized, under the action of the spring force of the butterfly spring 612, the brake disc 63 and the armature assembly 62 generate friction, braking the transmission shaft 66. When the coil is de-energized, under the action of the electromagnetic force, the armature assembly 62 is attracted to the magnetic yoke assembly 61, loosening the brake disc and releasing the brake.

[0031] Further, if Figure 3 and Figure 4 As shown, the transmission shaft 62 is a transmission component made of metal material, which is used to connect the power output end and the brake component. On the outer surface of the transmission shaft 62, three fixing grooves are opened along the axial direction, namely the first fixing groove 622, the second fixing groove 623 and the third fixing groove 624.

[0032] The first fixing groove 622 is located at one end of the drive shaft 62. It is 10 mm long, 6 mm wide, and appropriately deep to meet the requirements of connection with the brake component. The location and size of the first fixing groove 622 provide good radial support for the connected brake component, thereby improving the overall stability of the drive shaft 62.

[0033] The second fixing groove 623 is located in the middle of the transmission shaft 62 and is 60 mm long, 8 mm wide, and has a suitable depth. The design of the second fixing groove 623 allows the transmission shaft 62 to provide better radial support for the brake component when subjected to axial force, further enhancing the stability of the transmission shaft 62.

[0034] The third fixing groove 624 is located at the other end of the transmission shaft 62 and has a length of 10 mm, a width of 6 mm, and an appropriate depth. The third fixing groove 624 corresponds to the first fixing groove 622 and together provides radial support for the transmission shaft 62.

[0035] Furthermore, the armature assembly 63 is located on the periphery of the yoke assembly 61 and can move in the axial direction, closely cooperating with the excitation coil assembly 61 to generate magnetism under the action of the magnetic field, thereby realizing the braking function.

[0036] Furthermore, the brake disc 64 is installed on the other side of the yoke assembly 61 opposite to the armature assembly 63, and the edge of the brake disc 64 is provided with anti-slip teeth to prevent relative sliding with the drive shaft 66 during high-speed rotation. When the brake disc 64 is rotated by external force, the magnetism of the armature assembly 63 will attract the brake disc 64, thereby stopping it from rotating.

[0037] Furthermore, the two leads of the yoke assembly 61 are directly connected to a 24V DC power supply, the DC24V power switch 8 is installed on the front surface of the right movable base head 3, and the right base hand wheel 33 is installed on the end of the transmission shaft of the electromagnetic power-off brake group 6.

[0038] The implementation principle of the electromagnetic positioning structure for lamp tube processing machines according to the embodiment of the present application is as follows: when the operator needs to brake, the current of the yoke assembly 61 is controlled to make the armature assembly 62 magnetic. The magnetism of the armature assembly 62 attracts the brake disc 63, making it in close contact with the armature assembly 62. Due to the action of the butterfly spring 65, the friction between the brake disc 63 and the armature assembly 62 increases, thereby achieving braking. When the operator needs to release the brake, the current of the yoke assembly 61 is cut off, so that the armature assembly 62 loses its magnetism, the brake disc 63 separates from the armature assembly 62, and the brake is released, thereby being able to control the position fixation and release of the right base hand wheel 33.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An electromagnetic positioning structure for a lamp tube processing machine tool, comprising a bottom operating table (1) with a slide rail (11) provided thereon, a left fixed base head (2) arranged on the left side of the bottom operating table (1), a right movable base head (3) arranged on the right side of the bottom operating table (1), a movable heating and forming assembly (4) located between the left fixed base head (2) and the right movable base head (3), a slide (32) at the bottom end of the right movable base head (3) adapted to fit the slide rail (11), and a right base hand wheel (33) installed perpendicular to the horizontal plane of the slide rail (11), characterized in that: An electromagnetic brake (6) is additionally provided on the right base hand wheel (33). The electromagnetic brake (6) comprises a yoke assembly (61), a coil (611), a butterfly spring (612), a transmission shaft (62), an armature assembly (63) and a brake disc (64). The braking and releasing of the electromagnetic brake (6) are achieved by controlling the current of the yoke assembly (61).

2. The electromagnetic positioning structure for lamp tube processing machine tools according to claim 1, characterized in that: The yoke assembly (61) comprises a coil (611) and a butterfly spring (612), wherein the coils (611) are separated by insulating material and are installed at a section close to the armature assembly (63).

3. The electromagnetic positioning structure for lamp tube processing machine tools according to claim 2, characterized in that: A circle of heat sinks is added around the periphery of the yoke assembly (61).

4. The electromagnetic positioning structure for lamp tube processing machine tools according to claim 1, characterized in that: The transmission shaft (62) is made of metal and has three fixing grooves (622, 623, 624) on its surface, which are respectively located at both ends and the middle of the transmission shaft (62) for providing radial support.

5. The electromagnetic positioning structure for lamp tube processing machine tools according to claim 4, characterized in that: A first fixing groove (622) is provided at one end, the first fixing groove having a length of 10 mm and a width of 6 mm; a second fixing groove (623) is provided in the middle, the second fixing groove having a length of 60 mm and a width of 8 mm; a third fixing groove (624) is provided at the other end, the third fixing groove having a length of 10 mm and a width of 6 mm; the first fixing groove (622) corresponds to the third fixing groove (624), providing good radial support for the connected braking component.

6. The electromagnetic positioning structure for lamp tube processing machine tools according to claim 1, characterized in that: The brake disc (64) is mounted on the transmission shaft (62) at the other side of the yoke assembly (61) that is opposite to the armature assembly (63), and anti-slip teeth are provided on the edge of the brake disc (64).

7. The electromagnetic positioning structure for lamp tube processing machine tools according to claim 1, characterized in that: A DC24V power switch (8) is installed on the front view surface of the right movable base head (3) to control the power connection and disconnection of the electromagnetic brake (6).

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